Return-path: Received: from s131.mittwaldmedien.de ([62.216.178.31]:22415 "EHLO s131.mittwaldmedien.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751725AbXLEHta (ORCPT ); Wed, 5 Dec 2007 02:49:30 -0500 From: Holger Schurig To: linux-wireless@vger.kernel.org Subject: Re: [RFC][PATCH] mac80211: Use PID controller for TX rate control Date: Wed, 5 Dec 2007 08:49:46 +0100 Cc: "Nick Kossifidis" , "Stefano Brivio" , "Mattias Nissler" , "John W. Linville" , "Johannes Berg" References: <1196622331.7472.4.camel@localhost> <20071204024146.15689ee3@morte> <40f31dec0712041405sb14243dw9ccb7509e6f58d8@mail.gmail.com> In-Reply-To: <40f31dec0712041405sb14243dw9ccb7509e6f58d8@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200712050849.46760.hs4233@mail.mn-solutions.de> (sfid-20071205_074941_123573_FC7B4EA3) Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tuesday 04 December 2007 23:05:28 Nick Kossifidis wrote: > [ 3] 0.0-60.0 sec 29.4 MBytes 4.11 Mbits/sec 3.242 ms > [ 3] 0.0-60.0 sec 29.4 MBytes 4.11 Mbits/sec 4.439 ms > [ 3] 0.0-60.0 sec 32.7 MBytes 4.57 Mbits/sec ... Could it be the case that if we test the PID controller such way, then we optimize for throughtput in a scenario like "laptop sits next the the AP". Or, in other words: if we put the AP 80m away and then try the test, would the same PID parameters that yielded high MB/s rates now still keep us a sane (for that distance!) connection?